Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Martelo, L. M."'
Autor:
Martelo, L. M., Ferreira, Aires
Publikováno v:
Communications Physics 7, 308 (2024)
The emergence of strong relativistic spin-orbit effects in low-dimensional systems provides a rich opportunity for exploring unconventional states of matter. Here, we present a route to realise tunable relativistic band structures based on the latera
Externí odkaz:
http://arxiv.org/abs/2404.13590
Publikováno v:
Phys. Rev. B 100, 174517 (2019)
We calculate the superfluid weight and the polarization amplitude for the one-dimensional bosonic Hubbard model focusing on the strong-coupling regime. Other than analytic calculations we apply two methods: variational Monte Carlo based on the Baeris
Externí odkaz:
http://arxiv.org/abs/1909.06050
Publikováno v:
Phys. Rev B vol. 93 art.174518 (2016)
A variational Monte Carlo method for bosonic lattice models is introduced. The method is based on the Baeriswyl projected wavefunction. The Baeriswyl wavefunction consists of a kinetic energy based projection applied to the wavefunction at infinite i
Externí odkaz:
http://arxiv.org/abs/1605.02698
Autor:
Carmelo, J. M. P., Penc, K., Martelo, L. M., Sacramento, P. D., Santos, J. M. B. Lopes dos, Claessen, R., Sing, M., Schwingenschlögl, U.
The momentum and energy dependence of the weight distribution in the vicinity of the one-electron spectral-function singular branch lines of the 1D Hubbard model is studied for all values of the electronic density and on-site repulsion $U$. To achiev
Externí odkaz:
http://arxiv.org/abs/cond-mat/0404618
Publikováno v:
Journal of Physics: Condensed Matter, volume 16, issue 8, pages 1375 - 1399 (2004)
In this paper we derive general expressions for few-electron spectral functions of the one-dimensional Hubbard model for values of the excitation energy in the vicinity of the $M^{th}$ upper-Hubbard band lower limit. Here $M=1,2,...$ is the rotated-e
Externí odkaz:
http://arxiv.org/abs/cond-mat/0307729
Autor:
Sing, M., Schwingenschlögl, U., Claessen, R., Blaha, P., Carmelo, J. M. P., Martelo, L. M., Sacramento, P. D., Dressel, M., Jacobsen, C. S.
We study the electronic structure of the quasi-one-dimensional organic conductor TTF-TCNQ by means of density-functional band theory, Hubbard model calculations, and angle-resolved photoelectron spectroscopy (ARPES). The experimental spectra reveal s
Externí odkaz:
http://arxiv.org/abs/cond-mat/0304283
Publikováno v:
Phys.Rev.B 60, 12329 (1999)
We study the spin excitations and the transverse susceptibility of a two-dimensional antiferromagnet doped with a small concentration of holes in the t-J model. The motion of holes generates a renormalization of the magnetic properties. The Green's f
Externí odkaz:
http://arxiv.org/abs/cond-mat/9910474
Publikováno v:
Journal of Physics: Condensed Matter; 3/ 3/2004, Vol. 16 Issue 8, p1375-1399, 25p
